I apologize, but I couldn't find any specific information about AC-227 and AC-225 that would allow me to provide a meaningful comparison. It's possible that these terms refer to specific contexts or abbreviations that are not widely recognized or documented. It's important to note that acronyms and codes can have various meanings depending on the industry or field of application.
If AC-227 and AC-225 pertain to a particular subject or domain, please provide additional context or clarification so that I can assist you more effectively.